Method and apparatus for automatically adjusting video media stream transmission path

Abstract

The invention discloses a method and apparatus for automatically adjusting a video media stream transmission path. The method comprises the following steps: when a video sending end senses the blockage of video media streams, obtaining a source MAC address of a message from messages sent by a video receiving end, searching optional paths of the video media streams according to the source MAC address, and selecting a backup path of sending the video media streams from the searched optional paths, modifying the destination MAC address of the video media streams into the MAC address of a router equivalent to a gateway router of the video sending end in the selected backup path, and sending the video media streams to the video receiving end through the selected backup path. The blockage problem of the video media streams is solved. The apparatus disclosed by the invention comprises an address obtaining module, a path search module and a sending module. By adoption of the method and apparatus disclosed by the invention, the judgment and calculation are efficient, the accuracy is high, the feasibility is strong, the backup path of the video media streams can be changed conveniently and quickly, and no attention needs to be paid to the networking structure of an intermediate network.

Description

technical field [0001] The invention belongs to the field of video monitoring, in particular to a method and device for automatically adjusting the transmission path of video media streams. Background technique [0002] In a video surveillance system, in order to make the video sender (such as a camera) communicate with other network elements (such as a video management server, video client) normally through an IP network, a certain router is usually set as the gateway router of the camera. All IP data packets sent are forwarded through the gateway router, so the transmission path of the video media stream when it is sent from the camera to the video client in a certain network segment is usually a single path, such as figure 1 As shown, the transmission path of the video media stream sent from the camera to the video client is: Layer 2 switch E→router A→router B→Layer 2 switch F. Insufficient network bandwidth causes network congestion and packet loss, resulting in freezes...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for automatically adjusting the transmission path of video media streams. Without adding equipment, the video sending end automatically perceives that the video media stream sent to the video receiving end is stuck, and searches for the video media stream from the video. The sending end sends to the backup path of the video receiving end, and sends the video media stream from the found alternate path to the video receiving end, so as to solve the video monitoring screen freeze problem at the video receiving end caused by insufficient bandwidth of the original transmission path

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